Hey i need help with making the armour , sword,gauntlets with this cosplay as i have no clue where to begin. I also need help with the fabric with the tunic and hat as it looks like it changes colour and is differrent from the in game model and the artwork. Please help me somebody!

when i was plannng on a deity link cosplay, i studied his armour for a week, then drew every seperate piece of the armour on posterboard before cutting it out of sheets of foam and gluing it all together (with velcro at the sides so you can get it on and off) It does take a while